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Finding the Fourth Proportional to 531,627.36, 733,663.40 and 289,923.12

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Solution

The fourth proportional to 531,627.36, 733,663.40 and 289,923.12 is: 400,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,627.36 : 733,663.40 = 289,923.12 : x
  2. Step 2: Convert to fraction form
    531,627.36/733,663.40 = 289,923.12/x
  3. Step 3: Cross multiply
    531,627.36x = 733,663.40 × 289,923.12
  4. Step 4: Simplify right side
    531,627.36x = 212,705,981,957.81
  5. Step 5: Solve for x
    x = 212,705,981,957.81/531,627.36
  6. Step 6: Final answer
    x = 400,103.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.